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Forum Discussion
All lights blinking. No service. CM500
All lights are green and the service is still spotty. The ISP isn’t much help. What should I do? I’ve done plenty of reboots.
Try a factory reset by pressing the reset button in back for 10 seconds then release?
What's the brand and model of the external wifi router connected to the CM modem?
Oh and the router is a tp-link AC1750
Are you accessing 192.168.100.1 for the modems web page?
Might try connecting a wired PC directly to the back of the modem with out the router in the middle to see if you can gain access the modems web page.
I was actually able to access it through a different browser. Go figure! Hopefully this is what you need
Frequency start Value This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect. Starting Frequency Startup Procedure
Procedure Status Comment Acquire Downstream Channel 381000000 Hz Locked Connectivity State OK Operational Boot State OK Operational Security Enabled BPI+ IP Provisioning Mode Honor MDD honorMdd(4) Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1 Locked QAM256 37 381000000 Hz -14.4 dBmV 36.3 dB 0 0 2 Locked QAM256 33 357000000 Hz -14.2 dBmV 36.4 dB 0 0 3 Locked QAM256 34 363000000 Hz -14.2 dBmV 36.4 dB 0 0 4 Locked QAM256 35 369000000 Hz -14.5 dBmV 36.2 dB 0 0 5 Locked QAM256 36 375000000 Hz -14.5 dBmV 36.2 dB 0 0 6 Locked QAM256 38 387000000 Hz -14.6 dBmV 36 dB 0 0 7 Locked QAM256 39 393000000 Hz -14.7 dBmV 36 dB 0 0 8 Locked QAM256 40 399000000 Hz -14.7 dBmV 36 dB 0 0 9 Locked QAM256 41 405000000 Hz -14.6 dBmV 36 dB 0 0 10 Locked QAM256 42 411000000 Hz -14.4 dBmV 36.3 dB 0 0 11 Locked QAM256 43 417000000 Hz -14.3 dBmV 36.3 dB 0 0 12 Locked QAM256 44 423000000 Hz -14.1 dBmV 36.4 dB 0 0 13 Locked QAM256 45 429000000 Hz -13.8 dBmV 36.7 dB 0 0 14 Locked QAM256 46 435000000 Hz -13.8 dBmV 36.7 dB 0 0 15 Locked QAM256 47 441000000 Hz -13.6 dBmV 36.8 dB 0 0 16 Locked QAM256 48 447000000 Hz -13.7 dBmV 36.8 dB 0 0 Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1 Locked ATDMA 4 5120 Ksym/sec 36700000 Hz 57 dBmV OK,
Power is way too low:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
Ask the ISP to turn up the power to a good middle ground value as seen in the spec.
Please post the event logs data page as well.